Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

Current conditions at

Storm Lake (KSLB)

Lat: 42.6°NLon: 95.23°WElev: 1489ft.

Fog/Mist

70°F

21°C

Humidity 100%
Wind Speed S 5 mph
Barometer 29.98 in
Dewpoint 70°F (21°C)
Visibility 6.00 mi
Last update 27 Jul 1:35 am CDT
Extended Forecast for

Early IA

Heat Advisory July 27, 12:00pm until July 27, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Partly cloudy, with a low around 69. South wind around 6 mph.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 92. Heat index values as high as 106. South southeast wind 6 to 13 mph, with gusts as high as 18 mph.

    High: 92 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. South southwest wind around 10 mph.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 96. Heat index values as high as 110. Southeast wind around 8 mph.

    High: 96 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 71. Northeast wind around 8 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Mostly Clear
    then Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 4pm, then a slight chance of showers and thunderstorms after 4pm.  Mostly sunny, with a high near 89. Chance of precipitation is 20%.

    High: 89 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly after 1am.  Mostly cloudy, with a low around 67. Chance of precipitation is 70%.

    Low: 67 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 78.

    High: 78 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 69. South wind around 6 mph.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 92. Heat index values as high as 106. South southeast wind 6 to 13 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 73. South southwest wind around 10 mph.
Monday
Sunny, with a high near 96. Heat index values as high as 110. Southeast wind around 8 mph.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Northeast wind around 8 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 89. Chance of precipitation is 20%.
Tuesday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78.
Wednesday Night
Mostly cloudy, with a low around 60.
Thursday
Partly sunny, with a high near 76.
Thursday Night
Mostly cloudy, with a low around 57.
Friday
Partly sunny, with a high near 74.
Friday Night
Mostly cloudy, with a low around 57.
Saturday
Partly sunny, with a high near 75.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Early IA
 42.46°N 95.15°W
10:50 pm CDT Jul 26, 2025
1am CDT Jul 27, 2025-6pm CDT Aug 2, 2025
 
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